2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #ifndef included_vcom_socket_h
17 #define included_vcom_socket_h
21 #include <libvcl-ldpreload/vcom_glibc_socket.h>
22 #include <vppinfra/types.h>
24 #define INVALID_SESSION_ID (~0)
25 #define INVALID_FD (~0)
27 #define INVALID_VEP_IDX INVALID_SESSION_ID
28 #define INVALID_EPFD INVALID_FD
32 SOCKET_TYPE_UNBOUND = 0,
33 SOCKET_TYPE_KERNEL_BOUND,
34 SOCKET_TYPE_VPPCOM_BOUND
39 EPOLL_TYPE_UNBOUND = 0,
40 EPOLL_TYPE_KERNEL_BOUND,
41 EPOLL_TYPE_VPPCOM_BOUND
50 /* add new types here */
51 /* FD_TYPE_MAX should be the last entry */
58 * fd 0, 1, 2 have special meaning and are reserved,
59 * -1 denote invalid fd */
62 /* session id - -1 denote invalid sid */
66 vcom_socket_type_t type;
68 /* vcom socket attributes here */
74 /* epoll file descriptor -
75 * epfd 0, 1, 2 have special meaning and are reserved,
76 * -1 denote invalid epfd */
79 /* vep idx - -1 denote invalid vep_idx */
83 vcom_epoll_type_t type;
85 /* flags - 0 or EPOLL_CLOEXEC */
88 /* vcom epoll attributes here */
91 * 00. count of file descriptors currently registered
92 * on this epoll instance.
93 * 01. number of file descriptors in the epoll set.
94 * 02. EPOLL_CTL_ADD, EPOLL_CTL_MOD, EPOLL_CTL_DEL
96 * 03. cached for frequent access.
100 /* close( ) called on this epoll instance */
101 /* 0 - close ( ) not called, 1 - close( ) called. */
108 /* "container" of this item */
111 /* fd - file descriptor information this item refers to */
113 /* next and prev fd in the "epoll set" of epfd */
120 /* interested events and the source fd */
121 struct epoll_event event;
123 /* ready events and the source fd */
124 struct epoll_event revent;
126 /* epitem attributes here */
130 typedef union vcom_epitem_key
138 } __EPOLL_PACKED vcom_epitem_key_t;
141 vcom_socket_type_str (vcom_socket_type_t t)
145 case SOCKET_TYPE_UNBOUND:
146 return "SOCKET_TYPE_UNBOUND";
148 case SOCKET_TYPE_KERNEL_BOUND:
149 return "SOCKET_TYPE_KERNEL_BOUND";
151 case SOCKET_TYPE_VPPCOM_BOUND:
152 return "SOCKET_TYPE_VPPCOM_BOUND";
155 return "SOCKET_TYPE_UNKNOWN";
160 vcom_socket_epoll_type_str (vcom_epoll_type_t t)
164 case EPOLL_TYPE_UNBOUND:
165 return "EPOLL_TYPE_UNBOUND";
167 case EPOLL_TYPE_KERNEL_BOUND:
168 return "EPOLL_TYPE_KERNEL_BOUND";
170 case EPOLL_TYPE_VPPCOM_BOUND:
171 return "EPOLL_TYPE_VPPCOM_BOUND";
174 return "EPOLL_TYPE_UNKNOWN";
179 vcom_socket_vcom_fd_type_str (vcom_fd_type_t t)
184 return "FD_TYPE_KERNEL";
187 return "FD_TYPE_EPOLL";
189 case FD_TYPE_VCOM_SOCKET:
190 return "FD_TYPE_VCOM_SOCKET";
193 return "FD_TYPE_UNKNOWN";
198 vcom_socket_type_is_vppcom_bound (vcom_socket_type_t t)
200 return t == SOCKET_TYPE_VPPCOM_BOUND;
204 vcom_socket_epoll_type_is_vppcom_bound (vcom_epoll_type_t t)
206 return t == EPOLL_TYPE_VPPCOM_BOUND;
210 vsocket_init (vcom_socket_t * vsock)
212 memset (vsock, 0, sizeof (*vsock));
214 vsock->fd = INVALID_FD;
215 vsock->sid = INVALID_SESSION_ID;
216 vsock->type = SOCKET_TYPE_UNBOUND;
217 /* vcom socket attributes init here */
221 vepoll_init (vcom_epoll_t * vepoll)
223 memset (vepoll, 0, sizeof (*vepoll));
225 vepoll->epfd = INVALID_EPFD;
226 vepoll->vep_idx = INVALID_VEP_IDX;
227 vepoll->type = EPOLL_TYPE_UNBOUND;
232 /* vcom epoll attributes init here */
236 vepitem_init (vcom_epitem_t * vepitem)
238 struct epoll_event event = {.events = 0,.data.fd = INVALID_FD };
240 memset (vepitem, 0, sizeof (*vepitem));
242 vepitem->epfd = INVALID_EPFD;
244 vepitem->fd = INVALID_FD;
245 vepitem->next_fd = INVALID_FD;
246 vepitem->prev_fd = INVALID_FD;
248 vepitem->type = FD_TYPE_INVALID;
250 vepitem->event = event;
251 vepitem->revent = event;
252 /* vepoll attributes init here */
256 vepitemkey_init (vcom_epitem_key_t * epfdfd)
258 memset (epfdfd, 0, sizeof (*epfdfd));
260 epfdfd->epfd = INVALID_EPFD;
261 epfdfd->fd = INVALID_FD;
265 vsocket_set (vcom_socket_t * vsock, i32 fd, i32 sid, vcom_socket_type_t type)
270 /* vcom socket attributes set here */
274 vepoll_set (vcom_epoll_t * vepoll,
275 i32 epfd, i32 vep_idx,
276 vcom_epoll_type_t type, i32 flags, i32 count, u32 close)
279 vepoll->vep_idx = vep_idx;
281 vepoll->flags = flags;
283 vepoll->count = count;
284 vepoll->close = close;
285 /* vcom epoll attributes set here */
289 vepitem_set (vcom_epitem_t * vepitem,
291 i32 fd, i32 next_fd, i32 prev_fd,
293 struct epoll_event event, struct epoll_event revent)
295 vepitem->epfd = epfd;
298 vepitem->next_fd = next_fd;
299 vepitem->prev_fd = prev_fd;
301 vepitem->type = type;
303 vepitem->event = event;
304 vepitem->revent = revent;
305 /* vcom epitem attributes set here */
309 vepitemkey_set (vcom_epitem_key_t * epfdfd, i32 epfd, i32 fd)
316 vsocket_is_vppcom_bound (vcom_socket_t * vsock)
318 return vcom_socket_type_is_vppcom_bound (vsock->type);
322 vepoll_is_vppcom_bound (vcom_epoll_t * vepoll)
324 return vcom_socket_epoll_type_is_vppcom_bound (vepoll->type);
327 int vcom_socket_main_init (void);
329 void vcom_socket_main_destroy (void);
331 void vcom_socket_main_show (void);
333 int vcom_socket_is_vcom_fd (int fd);
335 int vcom_socket_is_vcom_epfd (int epfd);
337 int vcom_socket_close (int __fd);
339 ssize_t vcom_socket_read (int __fd, void *__buf, size_t __nbytes);
341 ssize_t vcom_socket_readv (int __fd, const struct iovec *__iov, int __iovcnt);
343 ssize_t vcom_socket_write (int __fd, const void *__buf, size_t __n);
345 ssize_t vcom_socket_writev (int __fd, const struct iovec *__iov,
348 int vcom_socket_fcntl_va (int __fd, int __cmd, va_list __ap);
350 int vcom_socket_ioctl_va (int __fd, unsigned long int __cmd, va_list __ap);
353 vcom_socket_select (int vcom_nfds, fd_set * __restrict vcom_readfds,
354 fd_set * __restrict vcom_writefds,
355 fd_set * __restrict vcom_exceptfds,
356 struct timeval *__restrict timeout);
359 int vcom_socket_socket (int __domain, int __type, int __protocol);
362 vcom_socket_socketpair (int __domain, int __type, int __protocol,
365 int vcom_socket_bind (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
368 vcom_socket_getsockname (int __fd, __SOCKADDR_ARG __addr,
369 socklen_t * __restrict __len);
372 vcom_socket_connect (int __fd, __CONST_SOCKADDR_ARG __addr, socklen_t __len);
375 vcom_socket_getpeername (int __fd, __SOCKADDR_ARG __addr,
376 socklen_t * __restrict __len);
379 vcom_socket_send (int __fd, const void *__buf, size_t __n, int __flags);
381 ssize_t vcom_socket_recv (int __fd, void *__buf, size_t __n, int __flags);
384 * RETURN 1 if __fd is (SOCK_STREAM, SOCK_SEQPACKET),
387 int vcom_socket_is_connection_mode_socket (int __fd);
390 vcom_socket_sendto (int __fd, const void *__buf, size_t __n,
391 int __flags, __CONST_SOCKADDR_ARG __addr,
392 socklen_t __addr_len);
395 vcom_socket_recvfrom (int __fd, void *__restrict __buf, size_t __n,
396 int __flags, __SOCKADDR_ARG __addr,
397 socklen_t * __restrict __addr_len);
400 vcom_socket_sendmsg (int __fd, const struct msghdr *__message, int __flags);
404 vcom_socket_sendmmsg (int __fd, struct mmsghdr *__vmessages,
405 unsigned int __vlen, int __flags);
408 ssize_t vcom_socket_recvmsg (int __fd, struct msghdr *__message, int __flags);
412 vcom_socket_recvmmsg (int __fd, struct mmsghdr *__vmessages,
413 unsigned int __vlen, int __flags,
414 struct timespec *__tmo);
418 vcom_socket_getsockopt (int __fd, int __level, int __optname,
419 void *__restrict __optval,
420 socklen_t * __restrict __optlen);
423 vcom_socket_setsockopt (int __fd, int __level, int __optname,
424 const void *__optval, socklen_t __optlen);
426 int vcom_socket_listen (int __fd, int __n);
429 vcom_socket_accept (int __fd, __SOCKADDR_ARG __addr,
430 socklen_t * __restrict __addr_len);
434 vcom_socket_accept4 (int __fd, __SOCKADDR_ARG __addr,
435 socklen_t * __restrict __addr_len, int __flags);
438 int vcom_socket_shutdown (int __fd, int __how);
440 int vcom_socket_epoll_create1 (int __flags);
443 vcom_socket_epoll_ctl (int __epfd, int __op, int __fd,
444 struct epoll_event *__event);
447 vcom_socket_epoll_pwait (int __epfd, struct epoll_event *__events,
448 int __maxevents, int __timeout,
449 const __sigset_t * __ss);
452 * handle only vcom fds
454 int vcom_socket_poll (struct pollfd *__fds, nfds_t __nfds, int __timeout);
458 vcom_socket_ppoll (struct pollfd *__fds, nfds_t __nfds,
459 const struct timespec *__timeout, const __sigset_t * __ss);
462 #endif /* included_vcom_socket_h */
465 * fd.io coding-style-patch-verification: ON
468 * eval: (c-set-style "gnu")